The national uthosraphina compai



.(lNoAModel.)

J. DAVID. DOOR CHECK.

No. 510,168. l Y Patented Deo. v5, 1893.

Uff 11" 5 'j MMWWBMX UNITED STATES S ATENT FFICE JOSEPH IWI. DAVID, OF IVILMINGTON, DELAWARE, vASSIGrNOR OF ONE-HALF TO WALTER A. MCEVILLY, OF SAME PLACE. I

D O O R C H EC K SPECIFICATION forming part of Letters Patent No. 510,163, dated December 5, 1893.

Application filed February 18,1893. Serial No. 462,867. (No model.)

To a/ZZ whom it may concern:

Be it known that I, JOSEPH M. DAVID, of Wilmington, in the county of New Castle and State of Delaware, have invented certain new and useful Improvements in Door Checks and Stops; and I do hereby declare that the following is a full, clear, and exact descriptionk thereof, reference being had to the accompanying drawings, and to the letters of referro ence marked thereon, which form part of this specification.

This invention is an improved check and stop for doors, blinds, tbc., and it consists in the novel combination and construction of r 5 parts hereinafter described and claimed.

Referring to the drawings by figures Flgure l illustrates the check and stop as applled to adoor. Fig. 2 is a vertical longitudinal section through the stop. Y Fig. 3 is a top zo plan view of the iioor keeper. Figs. 4 and 5 are, respectively, sectional viewsl of the floor and wall keepers. Fig. 6 isabottom view of the adjusting nut.

Referring to the drawings by letten-A z 5 designates the check casing, closed at front, top, bottom, and sides, but open at rear, and also having lateral flanges a at rear, perforated for the passage of screws by which it is secured to a door, or other body.

B designates a bolt extending longitudinally through the casing, and guided in suitable openings in the top and bottom thereof as shown. The lower portion b of this bolt is squared or angular in cross section, and the lower opening in the casing corresponds thereto, so that the bolt is kept from rotating in the casing while free to play vertically therein. The other part b of the bolt is cylindrical and its end (projecting above the 4o casing) is screw threaded as shown.

A spring C is slipped on the part h of the bolt within the casing and bears against the top of the casing and against the shoulder b2 of the bolt formed at the junction of parts b,

b thereof. This spring continually presses bolt B downward, but the position of the bolt is regulated by means of a thumb nut D on the upper end thereof. This nut has a series of radial notches CZ in its lower face adapted 5o to engage with a lug a on the top of the casing so as to prevent casualturning of the nut. The lug might be on bolt, and notches in casing if preferred. By pulling up on the nut S0 as to compress the spring and raise the bolt, the nutcan be turned freely, and the tension of the spring regulated thereby, and the length of part b below the casing adjusted. Part b has an offset as at b3, and its front and rear corners are rounded as shown, to facilitate its engagement with the keeper.

I have shown two forms of keepers respectively adapted for attachment to the door, and

to the wall; both keepers have a vertical opening E, a front bar e rounded on its upper and outer edge, to engage the rounded end of bolt B, and cause it to ride up and over into opening E; and a rear upstanding portion F, higher than bane, and provided with a cushioning padf in its face adjoining the opening E and adapted to receive the lat- 7o eral impact Aof the bolt B as indicated in Figs.

4 and 5.

The floor keeper G has lateral horizontally disposed ears g, perforated for the passage of retaining screws and the fwall keeper I'I 75 has lateral vertically disposed flanges h, also perforated for the passage of retaining screws.

Of course the wall keeper is employed when it is not desired to use the floor keeper, and vice versa.

The bolt may be so adjusted .thatit may be engaged or disengaged from the keeper by a pull on the door, or other body to which the casing is attached, or may be readily lowered so that it cannot be disengaged from the 8 5 keeper except by direct lifting of the bolt by hand. The positions of the keepers and check and stop bolt maybe reversed if desired.

Having described my invention, what I claim as new, and desire to secure by Letters 9o Patent thereon, is-

l. The combination with the casing, the bolt playing therethrough, the concealed spring on the bolt within the casing for depressing it, and the adjusting nut on the upper end of the bolt, and lugs and notches substantially as described for preventing casual turning of the nut, as and for the purpose described.

2. The combination of the casing, the bolt therein havinga squared and offset lower end, roo

athreaded upper end, an adjusting nut thereou bearing against the top of the casing, and devices for locking said nut, and a concealed spring Within the casing for depressing the bolt, substantially as and for the purpose specified.

3. The keeper having a vertical opening E, a rounded front bar e, and a rear upstanding portion F with pad f, substantially as and for the purpose described.

4C. The combination of the casing A open only at rear the bolt B therein having a squared lower portion b rounded at its front and rear edges, and a cylindrical threaded upper portion, the adjusting nut and interlocking lugs and grooves forholdingn saidnut- When adjusted, and the spring on the bolt Within the casing; with the keeper having a vertical opening, a rounded front bar, an upstanding rear portion provided with a pad, and lateral ears, all substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I aliix my signature in presence of two Witnesses.

JOSEPH M. DAVID.

Witnesses:

CHARLES GREEN, W. A. MCEVILLY. 

